how best to plan out array with the following

[daddy_fatsacks]

hello,

I am picking up a server later today which will have access to 6 drives. I have 4x 5TB and 2 SSDs.

I wanted to use proxmox on the server and either pass through disk management to an LVM running Rockstor or OMV.

From my reading I have determined that best practice would be to keep the host free to serve VMs.

My plan was to create a RAID-10 array out of the 4 5TB drives, which I could use for RAW storage, CIFS/NFS share etc.

My confusion comes from with deciding what to do with the SSDs. Ideally they would be used to store VMs or I was thinking of using them as cache drives for the 5TB storage drives.

Also, would it be best for me to just leave the 2 SSDs in stripe mode and install proxmox there (instead of my original idea to put it on USB stick)

or split them up, use 1 SSD for proxmox installation, and the other for cache or VMs ?

How would I best plan this out based on the drives that I currently have? The server only has 6 bays and I don't plan to use more than 6 drives.


Thanks for any advice.

 

[udo]

Hi,
I would do another approach - if your server has enough ram, use all disks + ssd for zfs to install pve on and give your nas-VM one small vm-hdd (system) and a big one for data.
So you can use snapshot, onlineresizing and perhaps zfssync.

Udo

 

[daddy_fatsacks]

I wanted to stay away from ZFS and use BTRFS instead.

Would doing a raid-1 out of my SSDs for the proxmox host OS drive and also use to carve VM disk.

and create a new raid-10 out of the spindles for storage.

would this be the best approach? I don't really like the idea of having proxmox and the VMs using the same disk though.